OP37.04: Applying FMBV technique in three-dimensional power Doppler indices when evaluating placenta: importance of PRF adjustment

2012 ◽  
Vol 40 (S1) ◽  
pp. 168-168
Author(s):  
C. A. Soares ◽  
A. W. Welsh ◽  
A. H. Miyague ◽  
F. Mauad Filho ◽  
N. J. Raine-Fenning ◽  
...  
Keyword(s):  
Power Doppler ◽  
Three Dimensional ◽  
Doppler Indices

scholarly journals Three-Dimensional Power Doppler Analysis of Cerebral Circulation in Normal and Growth-Restricted Fetuses

2009 ◽  
Vol 29 (9) ◽  
pp. 1609-1618 ◽  
Author(s):  
Jose L Bartha ◽  
Eva M Moya ◽  
Blas Hervías-Vivancos
Keyword(s):  
Doppler Ultrasound ◽  
Cerebral Circulation ◽  
Pulsatility Index ◽  
Power Doppler ◽  
Three Dimensional ◽  
Flow Index ◽  
Power Doppler Ultrasound ◽  
3D Power Doppler ◽  
Doppler Indices ◽  
Vascularization Index

The objective of the present study was to evaluate fetal cerebral circulation by using three-dimensional (3D) power Doppler ultrasound in normal and growth-restricted fetuses. A total of 100 normal grown fetuses were compared with other 25 with growth restriction (FGR). Three-dimensional power Doppler ultrasound was used to assess fetal cerebral 3D vascular indices: vascularization index, flow index (FI), and vascularization flow index (VFI). Both FI and VFI correlated positively with gestational age. On average, all the 3D vascular indices were increased in fetuses with FGR. The proportion of fetuses detected as having hemodynamic redistribution was higher when using 3D power Doppler indices than by means of the middle cerebral artery pulsatility index (52% versus 20%, P = 0.002). In conclusion, two of the three indices increased during gestation. All the fetal cerebral 3D vascular indices are increased in fetuses with FGR. In these fetuses, there were more cases suggesting hemodynamic redistribution than expected by conventional Doppler studies.

OP03.07: Influence of gain adjustment on three-dimensional power Doppler indices and on STIC volumetric pulsatility indices using an in vitro model

2012 ◽  
Vol 40 (S1) ◽  
pp. 63-63
Author(s):  
W. P. Martins ◽  
C. O. Nastri ◽  
T. Z. Pavan ◽  
A. H. Miyague ◽  
L. T. Polanski ◽  
...  
Keyword(s):  
In Vitro Model ◽  
Power Doppler ◽  
Three Dimensional ◽  
Vitro Model ◽  
Doppler Indices ◽  
Gain Adjustment
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